240252111347551 has 2 divisors, whose sum is σ = 240252111347552. Its totient is φ = 240252111347550.

The previous prime is 240252111347537. The next prime is 240252111347569. The reversal of 240252111347551 is 155743111252042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240252111347551 - 2⁴⁷ = 99514622992223 is a prime.

It is a super-2 number, since 2×240252111347551² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240252111347498 and 240252111347507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240252111347251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120126055673775 + 120126055673776.

It is an arithmetic number, because the mean of its divisors is an integer number (120126055673776).

Almost surely, 2^{240252111347551} is an apocalyptic number.

240252111347551 is a deficient number, since it is larger than the sum of its proper divisors (1).

240252111347551 is an equidigital number, since it uses as much as digits as its factorization.

240252111347551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336000, while the sum is 43.

Adding to 240252111347551 its reverse (155743111252042), we get a palindrome (395995222599593).

The spelling of 240252111347551 in words is "two hundred forty trillion, two hundred fifty-two billion, one hundred eleven million, three hundred forty-seven thousand, five hundred fifty-one".